合成孔径光场成像抗混叠渲染研究

Research on Anti-Aliasing Rendering of Synthetic Aperture Light Field Imaging

当前流行的数码相机或者单反相机往往只能记录光线在二维平面上的色彩分布,会丢失其他维度信息,如光线传播的角度等,合成孔径光场成像,因其独特的成像原理,能够记录角度信息,生成三维数据,受到相关研究学者的广泛关注。合成孔径光场成像还能利用多个小孔径光学设备,通过计算,模拟单个大孔径光学设备的成像结果,能够有效弥补单个大孔径制造成本高、加工难度大、体积笨重等缺陷。但合成孔径光场成像渲染方法存在角度欠采样,渲染结果会出现混叠效应,影响成像质量。

Currently popular digital cameras and SLR cameras can only record the color distribution of light on a two-dimensional plane,and will lose other dimensional information,such as the angle of light propagation.Synthetic aperture light field imaging,because of its unique imaging principle,can record angle information,generating three-dimensional data,has received extensive attention from related researchers.Synthetic aperture light field imaging can also use multiple small-aperture optical devices,and through calculations,simulate the imaging results of a single large-aperture optical device,which can effectively compensate for the high manufacturing cost,difficult processing,and bulky defects of a single large-aperture.However,the synthetic aperture light field imaging rendering method has angle undersampling,and the rendering result will have aliasing effects,which will affect the imaging quality.